RestRserve (version 0.1.5)

Logger: simple logging utility

Description

creates Logger object which can be used for logging with different level of verbosity. Log messages are in JSON format

Usage

Logger

Format

R6Class object.

Methods

$new(level = INFO, name = "ROOT", printer = NULL)

Logger with sink defined by printer function. It should have signature function(timestamp, level, logger_name, pid, message). By default when printer = NULL logger writes message in JSON format to stdout

$set_name(name = "ROOT")

sets logger name

$set_log_level(level = INFO)

sets log level

$set_printer(FUN = NULL)

sets function which defines how to print logs

$trace(msg, ...)

write trace message

$debug(msg, ...)

write debug message

$info(msg, ...)

write info message

$warning(msg, ...)

write warning message

$error(msg, ...)

write error message

Examples

# NOT RUN {
logger = Logger$new(INFO)
logger$info("hello world")
logger$info(list(message = "hello world", code = 0L))
# }